/*
 * Tencent is pleased to support the open source community by making TKEStack available.
 *
 * Copyright (C) 2012-2019 Tencent. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use
 * this file except in compliance with the License. You may obtain a copy of the
 * License at
 *
 * https://opensource.org/licenses/Apache-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OF ANY KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations under the License.
 */
package signal

import (
	"os"
	"os/signal"
	"syscall"

	glog "k8s.io/klog"
)

func BlockSignalHandler(f func()) {
	c := make(chan os.Signal, 1)
	signal.Notify(c, os.Interrupt, syscall.SIGTERM)

	// Block until a signal is received.
	sig := <-c
	f()
	glog.Infof("Exiting given signal: %v", sig)
	os.Exit(0)
}
